Drive Belt Tension and Alignment Adjustment
About
This procedure provides instruction to verify and make adjustments to the Drive Belt alignment
and tension. The Drive Belt alignment and tension should be verified anytime the Drive Belt is
removed or when unusual belt noises are heard during normal operation.
IMPORTANT: This procedure assumes that the Drive Belt is installed, see "Drive Belt
Replacement" on pageî117.
Specifications
Belt Condition
(1)
Calibration Belt
Tension Verification Belt Tension
New
(1)
110 lbs +/- 10 (50 kgs +/- 4.5) 100-120 lbs (45-54 kgs)
Used
(1)
85 lbs +/- 5 (39 kgs +/- 2) 80-90 lbs (36-41 kgs)
(1)îîNew belt tension applies to new belt first time installations. Used belt tension applies to
reinstalling an existing belt or re-tensioning an existing used belt
Procedure
Review entire procedure before starting.
Drive belt alignment adjustment
CAUTION: Improper Drive Belt alignment can cause unusual operating noises and
will eventually cause damage to the drive belt and/or the motor or roller pulley hard-
ware.
1. Remove the hood, see "Hood Cover Replacement" on pageî72.
2. Make sure that the Drive Belt is aligned parallel to the left side frame rail. Measure the
drive belt-to-frame rail distance at two places, at the Roller pulley and at the Drive Motor
pulley. The Drive Belt is correctly aligned when the two measured distances are the
same:
a. If the measurements are not the same, adjust the belt position on the Drive Motor
pulley to match the Roller belt distance.
b. Run the treadmill at 3 mph (5 kph) for one minute to allow the belt and pulley
groves to properly align and seat. Verify the Drive Belt remains aligned. Readjust
if alignment has changed.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
Page 51
5 Adjustment Procedures
Drive Belt Tension and Alignment Adjustment
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